Tidswell sounds very English.
The dates of birth are within 4 years, not bad, try:
www.freebmd.org.uk for records
The program I use has Tidswell's from 1659.
I note in the 1911 William, Band Master, Fancashire - so I would go with Lancashire rather than
Yorkshire, they are right next door.
www.freebmd.org.ukWilliam J. Tidswell born 1865, died 1924, Prestwich, Lancashire aged 59
William Tisdwell born 1865 Manchester, Lancashire 8d Pg.217 (registration)
Look for a marriage about 1885+
May seems to be a popular name for the Tisdwell's
May Tidswell, born Liverpool 8b Pg. 110 1901 Census
John William Tidswell born 1863
Annette Code
(not related)